Finding the Fourth Proportional to 143,469.96, 215,205.98 and 49,975.40

Step by Step Solution

1. Step 1: Write the proportion equation
   143,469.96 : 215,205.98 = 49,975.40 : x
2. Step 2: Convert to fraction form
   143,469.96/215,205.98 = 49,975.40/x
3. Step 3: Cross multiply
   143,469.96x = 215,205.98 × 49,975.40
4. Step 4: Simplify right side
   143,469.96x = 10,755,004,932.89
5. Step 5: Solve for x
   x = 10,755,004,932.89/143,469.96
6. Step 6: Final answer
   x = 74,963.46